<span>a chemical substance produced and released into the environment by an animal, especially a mammal or an insect, affecting the behavior or physiology of others of its species.</span>
I think the correct answer from the choices listed above is the third option. All of the following are common water pollutants that can be damaging to the environment except <span>carbon dioxide from combustion. This pollutant would go directly to the atmosphere and not to the waters. Hope this answers the question.</span>
You can get your work to do
Pretty sure its the placenta
